Vorlage

[demos/kafka/training] / src / main / java / de / juplo / kafka / Application.java

diff --git a/src/main/java/de/juplo/kafka/Application.java b/src/main/java/de/juplo/kafka/Application.java
index b304fa9..a44415e 100644 (file)
--- a/src/main/java/de/juplo/kafka/Application.java
+++ b/src/main/java/de/juplo/kafka/Application.java
@@ -7,10 +7,9 @@ import org.springframework.boot.ApplicationRunner;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.kafka.core.KafkaTemplate;
-import org.springframework.kafka.support.SendResult;
-import org.springframework.util.concurrent.ListenableFuture;
 
 
+// tag::supersimple[]
 @Slf4j
 @SpringBootApplication
 public class Application implements ApplicationRunner
@@ -23,19 +22,7 @@ public class Application implements ApplicationRunner
   {
     for (int i = 0; i < 100; i++)
     {
-      // tag::callback[]
-      ListenableFuture<SendResult<String, String>> listenableFuture =
-          kafkaTemplate.send("test", Long.toString(i%10), Long.toString(i));
-
-      listenableFuture.addCallback(
-          result -> log.info(
-              "Sent {}={} to partition={}, offset={}",
-              result.getProducerRecord().key(),
-              result.getProducerRecord().value(),
-              result.getRecordMetadata().partition(),
-              result.getRecordMetadata().offset()),
-          e -> log.error("ERROR sendig message", e));
-      // end::callback[]
+      kafkaTemplate.send("test", Long.toString(i%10), Long.toString(i));
     }
   }
 
@@ -44,3 +31,4 @@ public class Application implements ApplicationRunner
     SpringApplication.run(Application.class, args);
   }
 }
+// end::supersimple[]